Все продукты: форум сообщества

Hallo zusammen,

ich kann meinen Firefox nicht mehr aufrufen, weil er wohl nicht kompatibel mit 133 ist. Es wird empfohlen zu deinstallieren und neu zu installieren. Aber dann sind meine Favoriten, Lesezeichen und Passwörter weg. Ich kann sie nicht sichern, weil ich keinen Zugriff auf die alte Version habe. Wie löse ich das Problem?

Viele Grüße Annette

Hello everyone,

I can no longer access my Firefox because it is probably not compatible with 133 (see screenshot). It is recommended to uninstall and reinstall. But then my favorites, bookmarks and passwords are gone. I can't save them because I don't have access to the old version. How do I solve the problem?

Best regards Annette

Hi, just tried to access Firefox via an existing PC desktop short cut and it said "The item "firefox.exe that this shortcut refers to has been changed or moved, so this shortcut will no longer work properly. Do you want to delete this shortcut?" Not sure why it's suddenly done this.Should I delete the app via "Add remove" and re-install.

I have made no changes to the PC or mail midway through the day it suddenly said input password, the password is correct, but I get incorrect password message. The password works using browser mode.

the Thunderbird inbox does not display received emails and does not display new emails.My web host provider,Hostgator, has all the old emails and is receiving new ones. so they are in their files. So the problem is with thunderbird. I have consulted your support and forums, tried troubleshoot mode... When I right-clicked on the input file and clicked on repair the display went blank and the emails vanished....also at midnight

on 1/16/26 I no longer receiving new emails.

your help will be appreciated

Lance

Every time I try to sign in into my FF account in the browser it fails to connect to sync.

I get to the sign-in stage, it already knows my email so I'm prompted to put in my password then it sends me an email with code which I put in then I am prompted to put in my 2FA. I get signed in on a separate Mozilla accounts page but when I click on the Account icon in the top right in my browser and sync starts it immediately fails and says "Account Disconnected". I noticed that this started happening after I updated my email/updated Firefox to 131.0 (64-bit) Windows. Not sure if any of it is related.

I have tried various things like:

1. Logging in and out (multiple times) 2. Refreshing Firefox 3. Checking that I am not always using Privacy Mode (I was not) 4. Changing Profiles, changing default profiles 5. Reinstalling Firefox

Nothing solves the problem. I am now unable to see any of my bookmarks or anything from my profile because sync never works. I want to add that this is NOT a problem on Android. The issue happens only on my desktop FF installation.

Some months ago I received an email, but the body of the email was a picture (jpg) from my computer. The sender definitely does not have the image. The content from the sender is missing, and my image is in the body of the email and as an attachment.

This has happened a handful of times over the past 6-9 months, with the same image showing up in emails from various unrelated senders.

I just received an email from my partner who sent me an email with a screenshot attached, but instead of receiving what he sent, I've got an email with my image that randomly shows up in my inbox.

A few days ago it happened, but when I restarted my computer, the unwanted image was no longer present, and the actual email content was visible.

Restarting my computer has not resolved this particular instance.

Does anyone know why Thunderbird is in love with this one image of mine and why it keeps showing up in my inbox in emails from other people?

I am experiencing persistent issues configuring a custom-domain email account in Mozilla Thunderbird, while the same account works correctly in Outlook and in webmail.

Environment:

Email client: Mozilla Thunderbird (latest version)

OS: Windows

Mail hosting: Antagonist / DirectAdmin (shared hosting)

Domain: s23k.com

Email address: jean-paul.sablerolle@s23k.com

Incoming mail (POP):

Server: mail.s23k.com

Port: 995

Security: SSL/TLS

Authentication: normal password POP connection works without errors.

Outgoing mail (SMTP):

Server: mail.s23k.com

Ports tested: 465 (SSL/TLS), 587 (STARTTLS)

Thunderbird fails to send mail with the error:

“The requested domain name does not match the server’s certificate.”

Even after explicitly adding and permanently accepting the certificate exception, Thunderbird continues to reject the connection.

Important observations:

Webmail (Roundcube) can send mail successfully.

Microsoft Outlook can send mail successfully using the same SMTP server.

Thunderbird never completes SMTP authentication because the TLS handshake fails on hostname validation.

The certificate presented by the server appears to be issued for a different hostname than mail.s23k.com.

As a workaround, I am currently using an external SMTP server (KPN: smtp.kpnmail.nl), which works correctly in Thunderbird.

Question: Is Thunderbird intentionally stricter than Outlook regarding TLS hostname validation for SMTP, and is there any supported way to:

properly override this hostname mismatch for SMTP, or

diagnose whether this behavior is expected and unavoidable with misconfigured server certificates?

I would like to confirm whether this is expected Thunderbird behavior or if there is a configuration option I may have missed.

I am not trying to weaken security; I want to understand whether Thunderbird allows any safe override in this scenario or if the server configuration is fundamentally incompatible.

I have a new Brother printer MFC-L3780CDW. I can print from Foxfire internet, I can print from Microsoft Word. I can go to my Comcast online account and print emails, but I cannot print an email from Thunderbird from my desk top. I right click the email to bring up the menu. I select print and nothing happens. It dont bring up a print preview window to select printer. It does nothing. My old printer was also a Brother MFC, just an older model. everything worked fine. I called brother and they say since everything else prints it must be a problem in the Thunderbird Application

Pls kindly guide me on how to view my emails in the traditional view without "threads" and conversations/emails are shown according to date of receipt instead of "threads" or "grouping of conversations". Many thanks.

I was working with thunderbird today. Was in a specific email folder I had named "reference" that I use to store various emails, probably around 50 emails in there. Suddenly they all deleted from the folder as I was watching the screen. Checked spam/trash folders and nothing. Also logged into my webmail provider and nothing there either. Any idea what could have happened here? They just seem to have literally vanished. Have used Thunderbird a number of years and never experienced anything like this.

Suppose I see 10 incoming emails on my server (core.com). In thunderbird, when I click to download them, I see a message saying something like "downlaoding 10 emails". After that only 2 or 3 of them have been downloaded, the rest deleted. Help! This started happening a couple of weeks ago. I have tried downloading and re-installing Thunderbird, to no avail. Should I change my account settings?